Alfa Plam COMMO COMPACT 32 - Page 32

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Pellet boiler hydraulic installation diagram (accumulation tank)
Legend:
1. Pellet boiler
2. Air vent
3. Safety valve 3 bar
4. Air vent
5. Circulation pump
6. Three-way mixing valve with pipe thermostat
7. Accumulation tank (BUFFER)
8. Expansion vessel